Home / 2,918,609.70-4,375,840.95-1,321,937.70

Finding the Fourth Proportional to 2,918,609.70, 4,375,840.95 and 1,321,937.70

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Solution

The fourth proportional to 2,918,609.70, 4,375,840.95 and 1,321,937.70 is: 1,981,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,609.70 : 4,375,840.95 = 1,321,937.70 : x
  2. Step 2: Convert to fraction form
    2,918,609.70/4,375,840.95 = 1,321,937.70/x
  3. Step 3: Cross multiply
    2,918,609.70x = 4,375,840.95 × 1,321,937.70
  4. Step 4: Simplify right side
    2,918,609.70x = 5,784,589,121,008.82
  5. Step 5: Solve for x
    x = 5,784,589,121,008.82/2,918,609.70
  6. Step 6: Final answer
    x = 1,981,967.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.